'use strict';

function isObject(o) {
    return Object.prototype.toString.call(o) === '[object Object]'
}

function spinnerStart(msg, spinnerString = '|/-\\') {
    const Spinner = require('cli-spinner').Spinner
    const spinner = new Spinner(msg + ' %s')
    spinner.setSpinnerString(spinnerString)
    spinner.start()
    return spinner
}

// 对旧windows系统做兼容
function exec(command, args, options) {
    const win32 = process.platform === 'win32'

    const cmd = win32 ? 'cmd' : command
    const cmdArgs = win32 ? ['/c'].concat(command, args) : args

    return require("child_process").spawn(cmd, cmdArgs, options || {})
}

function execAsync(command, args, options) {
    return new Promise((resolve, reject) => {
        const p = exec(command, args, options)
        p.on('error', e => {
            reject(e)
        })
        p.on('exit', c => {
            resolve(c)
        })
    })
}

module.exports = {
    isObject,
    spinnerStart,
    exec,
    execAsync
}
